Access PHP variable in JavaScript

Question

Possible Duplicate    How to access PHP variables in JavaScript or jQuery rather than  lt  php echo  variable   gt        Is there any way to get access to a PHP variable in JavaScript   I have a variable   a  in PHP and want to get its value in a JavaScript variable

User · Answer

I m not sure how necessary this is  and it adds a call to getElementById  but if you re really keen on getting inline JavaScript out of your code  you can pass it as an HTML attribute  namely    lt span class  metadata  id  metadata-size-of-widget  title   lt  php echo json encode  size of widget    gt   gt  lt  span gt    And then in your JavaScript   var size of widget   document getElementById  metadata-size-of-widget   title

User · Answer

You can t  you ll have to do something like   lt script type  text javascript  gt     var php var     lt  php echo  php var    gt     lt  script gt    You can also load it with AJAX  rhino is right  the snippet lacks of a type for the sake of brevity   Also  note that if  php var has quotes  it will break your script  You shall use addslashes  htmlentities or a custom function

User · Answer

metrobalderas is partially right  Partially  because the PHP variable s value may contain some special characters  which are metacharacters in JavaScript  To avoid such problem  use the code below    lt script type  text javascript  gt  var something  lt  php echo json encode  a     gt    lt  script gt

[php] Access PHP variable in JavaScript

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